WycoTool Hydraulic Paving Vibrators - Manual (Page 19)

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Wyco Tool Company
motor between the jaws of a large crescent or
pipe wrench and rotate the motor in either
direction to break the silicone sealant that
was applied to the motor to housing interface.
Clean all sealant residue from the parts.
4) Alternate Seal Replacement
Repeat the process described in Section d with
the hydraulic motor removed from the motor
housing (13). Replace the seal as described
in Section d. If the seal does not come out,
repeat the process using a hydraulic hand
pump.
f) Assembly
1) Hydraulic Motor to Motor Housing
Assembly
Rotate the shaft coming out of the hydraulic
motor (14) by hand to insure that the hydraulic
motor is not locked internally (temporary
plugs may have to be loosened). Place the
hydraulic motor into motor housing (13).
Be sure the O-ring on the hydraulic motor is
in its proper position and is not damaged.
Lubricate with light coat of hydraulic oil
before inserting. Rotate the motor on the
housing until the three holes in the hydraulic
motor align with the holes in the motor
housing. Thread in one socket head cap
screw (11) with a lock washer (12). Clamp
the other housing in a vise and thread the other
two cap screws and lock washers in place.
Tighten all three screws securely. Add a bead
of Dow Corning RTV 732 silicon rubber
sealant or equivalent into the space between
the motor housing and the hydraulic motor.
Thread the hydraulic hoses (15 and 16) into
the hydraulic motor using three wraps of
Teflon tape on the threads.
ote: Do not over tighten the hose
fittings into the hydraulic motor. Over
tightening could cause the aluminum
motor to crack.
Apply No. 2 Permatex to the threaded end of
motor housing (13). Insert the hoses into the
angle bracket and screw the motor housing to
angle bracket (17).
ote: The hydraulic hoses need to turn
with the motor housing inside the angle
bracket while tightening.
Install the rubber plug (25) around the
hydraulic hoses and tap into place in the angle
bracket.
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Tighten the motor housing to the angle
bracket using a Girth Wrench or pipe
wrench. *Applying silicon sealant is optional